Evidence of Active Reverse Faulting and a Left-Stepping San Andreas Fault (Mission Creek Strand) in the Eastern San Bernardino Mountains, Southern California

This study presents a revision of mapped faults of the southern San Andreas fault, specifically the Mission Creek strand, at the latitude of northern Coachella Valley from Mission Creek to Whitewater River. Previous studies in the region indicate that as the San Andreas fault splits into the Mission Creek, Banning, and Garnet Hill strands in the Indio Hills, the Banning strand accommodates the majority of displacement across the plate boundary and forms a structurally complex zone with the Garnet Hill strand and San Gorgonio Pass fault zone, while the Mission Creek is mapped as inactive. However, a recent provenance study of displaced Quaternary sediment and 36Cl/10Be burial dating indicate recent fault activity on the Mission Creek strand during the mid to late Pleistocene. Field mapping at the onset of the left-restraining bend of the Mission Creek strand reveals a series of faults that offset geomorphic features in Quaternary alluvium and deform local bedrock. These faults have: (1) tilted and uplifted a middle Pleistocene alluvial fan complex; (2) preserved dip-slip displacement in mid to late Pleistocene fan surfaces along fault scarps; and (3) laterally offset stream channels that were incised during the latest Pleistocene and Holocene. Most interestingly, I observe laterally offset ridges, drainages, and debris flows along an unmapped trace of the Mission Creek strand. These observations allow for a revised interpretation of fault evolution for the San Andreas fault in the northern Coachella Valley region of southern California

Meteorological and operational aspects of 46 clear air turbulent sampling missions with an instrumented B-57B aircraft. Volume 2, appendix C: Turbulence missions

The results of 46 clear air turbulence (CAT) probing missions conducted with an extensively instrumented B-57B aircraft are summarized from a meteorological viewpoint in a two-volume technical memorandum. The missions were part of the NASA Langley Research Center's MAT (Measurement of Atmospheric Turbulence) program, which was conducted between March 1974, and September 1975, at altitudes ranging up to 15 km. Turbulence samples were obtained under diverse conditions including mountain waves, jet streams, upper level fronts and troughs, and low altitude mechanical and thermal turbulence. CAT was encountered on 20 flights comprising 77 data runs. In all, approximately 4335 km were flown in light turbulence, 1415 km in moderate turbulence, and 255 km in severe turbulence during the program

Environmental Impact Assessment of the Missouri Mine

Gold mining in Idaho and other western states has left a legacy of heavy metal contamination. These metals enter the food chain via plants and water, and are toxic to living organisms. There is a need to identify and map the heavy metal contamination, and to track the fate and transport of heavy metals from one mine site to another via surface waters. Our hypothesis is that the severe contamination in the area of the Missouri Mine is not all from that site, but includes heavy metals transported in surface water from another mine to the northeast, in the Summit Flat area. To test this hypothesis, samples of soil, water, sediment and vegetation are taken throughout the affected area. They are analyzed via Atomic Absorption spectroscopy for the target metals, using standard USEPA methods. Then a map of the contamination is prepared. If amounts of EPA criterion pollutants exceed acceptable levels, the results will be reported to appropriate government agencies

Leather Painting Exhibition On Display at Art Center Newspaper Clipping

Newspaper clipping titled Leather Painting Exhibition On Display at Art Center. Article discusses exhibition titled Lyle Novinski: Leather Paintings. Exhibition showcased 15 sewn leather compositions by Lyle Novinski. Exhibition was at the Art Center in Waco, Texas in September 1976. Dated September 12, 1976, Waco Tribune-Herald, Page 7B.https://digitalcommons.udallas.edu/faculty_off_campus_76-77/1000/thumbnail.jp

Connections 2035 The Waco Metropolitan Transportation Plan

248 pages. Prepared with: Federal Highway Administration, Federal Transit Administration, Texas Department of Transportation

Feeding suggestions for horses

Cover title.Rev. by Kevin H. Kline

The Maternally Expressed WRKY Transcription Factor TTG2 Controls Lethality in Interploidy Crosses of Arabidopsis

The molecular mechanisms underlying lethality of F1 hybrids between diverged parents are one target of speciation research. Crosses between diploid and tetraploid individuals of the same genotype can result in F1 lethality, and this dosage-sensitive incompatibility plays a role in polyploid speciation. We have identified variation in F1 lethality in interploidy crosses of Arabidopsis thaliana and determined the genetic architecture of the maternally expressed variation via QTL mapping. A single large-effect QTL, DR. STRANGELOVE 1 (DSL1), was identified as well as two QTL with epistatic relationships to DSL1. DSL1 affects the rate of postzygotic lethality via expression in the maternal sporophyte. Fine mapping placed DSL1 in an interval encoding the maternal effect transcription factor TTG2. Maternal parents carrying loss-of-function mutations in TTG2 suppressed the F1 lethality caused by paternal excess interploidy crosses. The frequency of cellularization in the endosperm was similarly affected by both natural variation and ttg2 loss-of-function mutants. The simple genetic basis of the natural variation and effects of single-gene mutations suggests that F1 lethality in polyploids could evolve rapidly. Furthermore, the role of the sporophytically active TTG2 gene in interploidy crosses indicates that the developmental programming of the mother regulates the viability of interploidy hybrid offspring